Machine for inserting fasteners.



H. E. COOPER & J. SAYBR.

MACHINE FOR INSERTING FASTENERS.

APPLICATION TILED SEPT.14. 1914.

1, 1 1 9,785. Patented Dec. 1,1914.

2 SHEETS-SHEBT 1. m

| lug Fig.1.

HIE NORRIS PErL'Rs C0 PNOTOLITNO WASHING raw, D C

H. E. COOPER & J. SAYER. MACHINE FDR INSBRTING FASTENERS.

APPLICATION FILED SEPT.14. 1914.

2 BHBETS-'SHBET 2 Patented Dec. 1, 1914.

l Z m the entrance to the said throat. With this .readiness for thedriver to operate. 1 These and other features of the invention will beunderstood from the following clescription of a preferred embodiment. ofthe STA , PATEN FFIOE- HAROLD EDMUND COOPER AND JOHN SAYER, OELEICESTER, ENGLAND, .ASSIGNORS .TD

UNITED SHOE MACHINERY COMPANY, OFPATERSON, NEW JERSEY, A CORPORA- TIONOF NEW JERSEY.

Application filed September 14, 1914..

To all whom it may concern Be it known that we, HAROLD E. Coornn andJOHN Saree, subjects of the King of Great Britain, residing atLeicester, Leicestershire, England, have invented certaln Improvementsin Machines for Inserting characters on the drawings indicatinglikeparts in the several figures.

The invention relates to machines for 1nserting fasteners and isparticularly applicable to machines which insert fasteners known asbills.

Fastener-inserting machines have been provided with means fortransferring fasteners from the raceway to the throat but it sometimeshappens with the means hitherto provided, particularly when employedwith cast steel bills that the fasteners lie across the throat so thaton the descent of the driver the machine may be damaged.

One object of the invention is to overcome this difficulty, and afurther object is to provide a device which shall be more certain inoperation and simpler in construction than devices of this nature whichhave been devised heretofore.

WVith these objects in view a feature of the invention is for a machinefor insertingfasteners comprising a raceway and a driving throat, anarrangement of the throat wherein it is formed partly in a pivotedmember which when swung by means into one position opens an entrance tothe throat and forms a continuation of the raceway so as to receive afastener therefrom, but which when swung by the said means into anotherposition transfers the fastener to and closes construction the movementof the pivoted member about its pivot will actually push the fastenerinto its correct position in the throat, so that it will be preventedfrom lying across the throat and so causing damage to the driver andother parts of the machine.

According to a further feature of the invention the said member isadapted to clamp the fastener in positionin the said throat 1n MACHINEFOR INSERTING FASTENERS.

Patented Dec. 1, 1914.

Serial No. 861,539.

invention, the description being aided by the accompanying drawingswhich show the said embodiment as applied to a machine of the typedescribed and shown in Goddu United States Letters Patent No. 490,624,granted January 24:, 1893. It is to be understood, however, that theembodiment of the invention is not limited to its application tomachines of this type, as it could be applied to other types of machinesfor inserting fasteners. It is also to be understood that it could beembodied in a variety of forms without departing from the spirit of theinventlon.

In the accompanying drawings :-Figure i i 1 is a front elevation of partof a machine of the type described in the aforementioned patent with apreferred embodiment of the present invention incorporated therein Fig.2 is a view, partly in section, and drawn to a scale larger than Fig. 1,showing particularly the rocking plate transferring a fastener tothethroat; Fig. 3 is a view similar toFig. 2, the rocking plate beingshown in its position wherein it forms a continuation of the raceway;Fig.4 is a horizontal section on line 3-3 of Fig. 3, certain of theparts beingshown in plan; and Fig. 5 is a view showing particularly theseparator and the plunger for swinging the rocking, plate about itspivot,

Like reference characters indicate like parts in all the figures of theaccompanying.

drawings.

The machine described in the specification mentioned above comprises amovable head 2 that carries an awl 1, a driver 6 and a camoperated lever8 at the lower end of which latter a nail separator is located.

of the movement of the head 9. conveys fastenersfrom a hopper not shownto the separator which latter moves the fasteners one A race way 10whichis connected to and partakes' at a time from the end of the racewayinto a position in which they are driven into the work by the driver 6.

In accordance with the present invention the lower part 12 of thedriving throat or driver passage 14; is formed in the movable head 2,while the upper part 16 is formed partly in the said head and partly ina rocking plate 18 carried by the raceway 10. To carry this into effectthe movable head is formed with a slottedfportion into which.

so transfer a projects one end of the raceway 10, see Figs. 2 and 3. Ina slot 20 in the raceway is pivoted at 22 the rocking plate 18.. Therocking plate 18 is provided with a longitudinal semi-circular groove 26and this groove coiiperates with a similar groove 28 in the movable headto form the upper part 16 of the throat or driver passage 14-. The upperpart of the plate 18 and the groove 26 curve inwardly or away from thedriver 6 (see Figs. 2 and 3) so that when the plate is swung about itspivot 22 in a direction away from the groove 28in the movable head andinto the position shown Fig. 3, the upper part of the groove 26 will bebrought into register with the groove 30 in the raceway along which thefasteners 32 slide. The plate when in this position forms an entrancetov the throat 14 and when the plate is swung in the reverse directionit will aline a fastener in the throat 1 1 and also close the saidentrance. This inward curve of the plate when the plate is in theposition shown in Fig. 3 causes a space to be formed between the driver6 which is down at this time, and theplate' 18 so that when, as will beexplained later, the separator Si is moved to allow a fastener to fallfrom the groove 80 in the raceway, the said fastener will fall into thesaid space. Upon the upward movement of the driver 6 means are providedto swing the rocking plate 18 on its pivot 22 so as to transfer, as justmentioned, a fastenerto the throat. 1% and also close the throat. Thisinward movement of the rocking plate also clampsthe fastener firmlybetween the plate 18 and the movable head 2 so that it cannot fall downthe throat 14 but is held firmly therein in readiness to be driven intothe work on the next descent of the driver 6. j I V In order to swingthe plate 18 about its pivot 22 in a direction away from the groove 28two springs 36, 38, are provided which are attached to a pin 4:0 in theplate 18 and to a pin 12v secured to the raceway. To swing the plate 18in the reverse direction there is mounted in the raceway a pin 14 oneend of which engagesthe back'of the rocking plate 18 and the oth'er endof which is engaged by a wedge face 416 formed on a plunger 48 which ismounted to slide in a bore in the raceway. Formed in the said plunger 48(see Fig. 5 is a slot 50 which projects upwardly and rearwardly of the"achine and this slot is engaged by a screw 52 carried by thecam-operated lever 8. As the lever 8 is swung to operate the separator,as will be explained presently, it will through its connection to theplunger 48 just described, move the said plunger which through its camface 46 will move the pin 41 which in turn will swing the rocking plateagainst the action of its springs36, j 38 and fastener to the throat,close the throat and clamp the fastener in position in readiness forthe, driver to drive. it into the Work.

The fastener separator 34,. in accordance with the present invention,comprises a plate that is pivoted at 58 to the cam-operated lever 8 andwhich is adapted to project across the end of the groove 30 in theraceway and when in its forward position, see Fig; 5, to prevent thefasteners from falling down the raceway. The separator 84 is provided atits forward end with a notch 60 which. when it is in its rearwardposition, see Fig. 3', will be in register with the groove 30 in theraceway so that a fastener 32 will be allowed to fall therefrom into thespace between the rocking plate 18 and the driver bar 6. T he notch 60in the separator plate has its rear corners 62 slightly beveled off sothat should a fastener be projecting slightly beyond the groove 30 inthe raceway whenthe separator is moved forward the said separator willpush back or ride over the fastener and in order to prevent thisfastener from falling from the groove the separator plate is heldagainst the fastener by spring pressure. For this purpose the separatorplate 81- is provided with an upwardly projecting arm 6-1 to one end ofwhich'is attached to a spring 66, the other end of which is attached tothe ca1n-operated lever 8. in order to adjust the height of the loweredge of that part of the separator that projects across the groove inthe raceway the arm 64 is held by the spring 66 against a roll 68 on theeccentric shank of a screw 70 so that if this bolt is turned in one orthe other direction the separator will be swung about its pivot 58 andthe aforementioned lower edge will be raised or lowered as required. I

The machine operates as followe s-Assuming a fastener to have beendriven into the leather and the driver 6 to be still in its loweredposition, the cam-operated lever 8 will be swung rearwardly of themachine so as to bring the notch 60 in the separator into alinement withthe groove 30 in the raceway so as to allow a fastener to falltherefrom, see Fig. 3. Simultaneously the plunger 48 which is attachedto the cam-operated lever 8 is also moved rearwardly so that the wedgeface 46 is moved away from the pin which engages the rocking plate 18 sothat the said plate under the action of its springs 36, 38, is movedbackwardly into a position where the top part of its groove 26 will bein alinement with the groove 30 in the raceway; The rocking plate ismoved into this position just at or just before the time when the notch60 is brought into alinement with the recess in the raceway so that afastener therefrom may fall into the space between the rocking plateand. the

driver 6 which is still tin-its lowermost position. At this time thedriver will com- I mence to rise and simultaneously the camoperatedlever 8 will be moved forwardly so as to move the notch 60 in theseparator 56 away from the groove 30 in the raceway and so preventanother fastener from falling from the raceway. This movement of thelever 8 will also bring the cam face 46 on the plunger ,48 intoengagement with the pinata and swingthe rocking plate against the actionof its springs 36, 38, and so clamp the fastener in a position inreadiness to be driven. From the foregoing it will be understood that asthe rocking plate 18 is swung about its pivot 22 it will force thefastener into correct alinement in the throat and so avoid thepossibility of it lying across the throat and so damaging the ma chine.

The space between the plate 18 and the driver 6 when the latter is inits lowermost position is of such shape that when the tinuation of theraceway so as to receive a fastener endwise therefrom and when swunginto another position transfers the fastener to and closes the entranceto the said throat.

2. In a machine for inserting nails, a raceway and a driving throat,said throat comprising a movable member forming part of one side of thesaid throat, which member when moved into one position forms aGuntinuation of the raceway to receive a nail endwise therefrom, andwhich when moved into another position transfers the nail to drivingposition.

3. In a machine for inserting nails, a driving throat, a driver, a naildetainer, a moving member, forming one side of the said throat, andmeans operating to withw draw said moving member, actuate said nailHAROLD EDMUND COOPER. JOHN SAYER.

Witnesses:

Cncn. Hnnnnn'r Cross, FRANK PooL.

Copie: 0! this patent may be obtained for five cents each. by addressingthe Commissioner of Patents, Washington D. G

